Finding the Fourth Proportional to 28,640,188,268,199, 39,530,813,537,580 and 18,653,566,315,557
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Solution
The fourth proportional to 28,640,188,268,199, 39,530,813,537,580 and 18,653,566,315,557 is: 25,746,711,052,522.59
Step by Step Solution
- Step 1: Write the proportion equation
28,640,188,268,199 : 39,530,813,537,580 = 18,653,566,315,557 : x - Step 2: Convert to fraction form
28,640,188,268,199/39,530,813,537,580 = 18,653,566,315,557/x - Step 3: Cross multiply
28,640,188,268,199x = 39,530,813,537,580 × 18,653,566,315,557 - Step 4: Simplify right side
28,640,188,268,199x = 737,390,651,831,166,983,154,434,048 - Step 5: Solve for x
x = 737,390,651,831,166,983,154,434,048/28,640,188,268,199 - Step 6: Final answer
x = 25,746,711,052,522.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.